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<p>BTA deep hole drilling is used to produce bore holes with a huge length-to-diameter ratio and a comparable high surface quality. Due to its placement at the end of the manufacturing chain, maximizing the process reliability and controlling the surface integrity of the produced bore holes is necessary. To support both aims, a 3D finite element model based on the Coupled Eulerian Lagrangian (CEL) method was developed and validated, modelling for the first time the detailed contact situation between the outer cutting edge and the following guide pad during the BTA deep hole drilling process. This model and the achieved simulation results, especially with respect to forces and temperatures, are shown in the present paper.</p>

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3D finite element model for simulating the BTA deep hole drilling process

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  • 发表日期：

    2026年5月25日

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  • Andreas Zabel,
  • Tim Rödder

摘要

BTA deep hole drilling is used to produce bore holes with a huge length-to-diameter ratio and a comparable high surface quality. Due to its placement at the end of the manufacturing chain, maximizing the process reliability and controlling the surface integrity of the produced bore holes is necessary. To support both aims, a 3D finite element model based on the Coupled Eulerian Lagrangian (CEL) method was developed and validated, modelling for the first time the detailed contact situation between the outer cutting edge and the following guide pad during the BTA deep hole drilling process. This model and the achieved simulation results, especially with respect to forces and temperatures, are shown in the present paper.